On 11/5/2020 1:36 AM, Vladimir Oltean wrote:
>> # ./testptp -d /dev/ptp1 -c -----switch
>> capabilities:
>> 1000000 maximum frequency adjustment (ppb)
>> 0 programmable alarms
>> 1 external time stamp channels
>> 0 programmable periodic signals
>
> This will be a problem. I am not sure why driver authors insist on
> implementing PTP_CLK_REQ_PPS instead of PTP_CLK_REQ_PEROUT. ts2phc will
> require PTP_CLK_REQ_PEROUT.
>
Usually from a lack of understanding what the kernel means by PPS vs
PEROUT. I've run into confusion in the past, and had trouble explaining
the difference to HW folks asking about this.
>> 0 pulse per second
>> 15 programmable pins
>> 0 cross timestamping
>
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